AI Volleyball Spike Analyzer

How hard do you really hit?

Record a single spike and VolleyVelocity uses on-device video plus AI to measure ball velocity, contact height, kill power, and spin in seconds — then puts you on friend, team, and global leaderboards. No radar gun required.

Download on theApp Store Get it onGoogle Play Privacy Policy

AI-measured velocity, power, contact height, and spin per hit
Slow-motion replay with on-screen stat overlays
Friend, team, and global leaderboards
Hit history with trends and personal records
Local-first recording — clips stay on your device

Ball velocity

62.4 mphkph

Peak · 12 frames after contact · ± 1.4 mph

CONTACT PEAK

Power

Contact

2.94

Spin

Features

Train smarter, hit harder

Everything you need to measure your game and compete — straight from your phone.

AI Hit Analysis

Trim your clip to a single spike and the analyzer returns velocity, power, contact height, and spin — calibrated for both indoor and beach volleyball.

Hit History & Trends

Every measured hit is saved with date, court, and conditions, so you can watch your numbers move week over week and chase new personal records.

Friend, Team & Global Boards

Add friends with a share link, create or join a team with a code, and climb the global board for the hardest hit of the week.

Slow-Mo Replay & Overlays

Scrub frame-by-frame with stat overlays burned in — perfect for breaking down approach, contact, and follow-through.

One-Tap Share

Export clips with the stat overlay locked on and drop them straight into Instagram, TikTok, or your team chat — no separate editor needed.

Local-First Recording

Videos stay on your device unless you choose to share. Only the analysis payload is sent for processing, and you can delete your data anytime.

How It Works

From clip to leaderboard in seconds

Three taps stand between a phone video and a verified number.

Record

Film a spike on any phone, or import an existing clip from your library. Trim it down to the single hit you want measured.

Analyze

AI tracks the ball across the contact frames and returns velocity, power, contact height, and spin — with a slow-motion replay to back it up.

Compete

Your hit lands on your history and on the friend, team, and global leaderboards. Share the clip with the stats burned in.

Metrics / Hit

Leaderboard Tiers

mph/kph

Toggleable Units

240fps

Slow-Mo Replay

iOS+And

Live Now

VolleyVelocity Pro

Unlock your full potential.

Pro tools that turn raw video into a coachable performance signal — unlimited analyses, deeper metrics, and the full competitive ladder.

Unlimited hit analyses

No daily caps. Track every practice.

Advanced metrics

Spin rate, contact angle, impact power.

Progress & trends

Watch your peak speed climb over time.

Leaderboards & rankings

Compete with friends and your team.

Share clips with overlays

Export your hit with the speed baked in.

Coach mode & annotations

Draw on frames, leave voice notes.

Pro is billed by Apple or Google. Cancel anytime from your device's subscription settings.

Privacy first

VolleyVelocity is built so your highlight clips stay in your control.

Local-first video — original clips stay on your device unless you explicitly share them.
Only the analysis matters — a short, low-resolution sequence around contact is sent for measurement, nothing more.
No ad tracking — no advertising identifiers, no cross-app tracking, no behavioral profiling.
No data sales — we never sell your personal information.
Delete anytime — remove your account and all associated data whenever you want.

For complete details, see our Privacy Policy.